Sarab or Sar Ab or Sar-e Ab or Sarab-e () may refer to: Afghanistan Sarab, Baghlan Sarab, Ghazni Iran Alborz Province Sarab, Alborz Chaharmahal and Bakhtiari Province Sarab-e Olya Rural Dist
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6caa78c2df423d67f4ed209104f1656ac1585f20f06306f551fdab8652dedc2c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77bd9986-ce35-40e1-9fee-a5db68823558.json and https://artists.proofprofile.net/proofs/artist/77bd9986-ce35-40e1-9fee-a5db68823558.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc904a4776f225a3a31a0a30c9d09221624ca9e49a34df50379fcd6c55c73be. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUBEC2327463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2702cde5c8f2fb42b04ac6e85f8f7854082df048822641df9a8d71db03f7be5c. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INH102407851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822464dc9aec1be89cd57aeaaabb1366aa9e83db97b05e2c03eb7097bc1fc40e. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INH102407866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1453a482882fea60f2cdf84702381e48fa71040f3f526b128253836f99c4c9f2. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIK2427015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618f28d6645daeef4d4cedfb509dd54291c5a6b5946317d524b473cce23d57b9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INH102410244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa48dcb639084a59c04523d0ae8b536279b99993e4a1cbf64f5b18095ec9c687. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INH102414997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e4ea971d3e33d741275a73071620bae3861afddb611ecb6f2f0cd18f2495f7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUBEC2506984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f71f4a8aff79dc21a73c648e455e0489d731902aced907f8dd586e1ce05df8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INH102501199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837a0d141cbc342e6b3dcc347038c0203b938eefffcc3357b57bb8938b258d1e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFH2598879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82ddd92d3148bcf5155e51c8a4c6ab1626c25b6e2564c56ac4da0980dd2cf3d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXHUT2545348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1479a1568fe0b19f7d7dc72633218a6df8f1b66dd2ed8d0d5fb6f9cae1cacca. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3FD2583581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e2703a7dcb81e90352160b268988fe1e46c98bb2aa96b7e3441d2933098150. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXHUT2559929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c4caeb9a240f778e200300e7bac3b596e7e7438fb140bad140e52f45cb1f52. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAU2318858.